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Some indications justify shorter or longer cycles based on response
Common Side Effects Reference When to Adjust Protocol The vast majority of GHK-CU users experience no significant side effects
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Baseline serum B12, folate, homocysteine, methylmalonic acid, and liver function tests (ALT, AST) inform starting status and response potential
Difficulty concentrating and mental impairment Another side effect of the impact a vitamin B12 deficiency can have on your nervous system: people with low or deficient B12 levels may feel foggy-headed and have difficulty concentrating and completing tasks
